External English (BSA) threaded road bottom bracket for 68/73mm shells. We use only Enduro bearings and silicone seals for the most durable and smoothest bottom brackets available. Fully serviceable.

Includes:

• (2) - Enduro Silicone dust seals
• (1) - 2.5mm aluminum BB cup spacer
• (2) - 0.5mm crank spindle spacers
• (2) - 1.0mm crank spindle spacers